A light-emitting device comprising an emitting unit including at least two emitting elements, a driving unit configured to control the emitting unit, and a capacitor unit formed over the driving unit. A shield layer may be located between the two emitting elements. In one example, the capacitor unit is formed at a level higher than a level of the driving unit, and a shield layer that is located between the two emitting elements is formed at a level that is higher than the level of the driving unit and equal to or lower than the level of the capacitor unit.

OLED pixel driving circuit, array substrate and display device are provided. The pixel driving circuit comprises a driving control unit, a first light emitting unit and a second light emitting unit. Two OLEDs share one driving control unit, so the two OLEDs alternately emit light. In this way, light emitting time of the OLEDs is reduced, number of parasitic capacitors and data lines in a panel is reduced, and aperture ratio of the OLED device is increased; and OLEDs are enabled to be in reverse bias in a non-light emitting display frame, so that OLEDs do not have to be in a DC bias state for a long time, and thus, aging of the OLED device is slowed down. No other reverse bias voltage is connected externally, difficulty of tracing of the pixel circuit and crosstalk from a bias voltage line to other signal lines are reduced.

A pixel circuit performs a threshold voltage correcting function. A sampling transistor becomes conductive in response to a control signal supplied from a scan line and samples a video signal supplied from a signal line to a pixel capacitor during a horizontal scanning period. The pixel capacitor applies an input voltage to a gate of a drive transistor in response to the sampled video signal. The drive transistor supplies an output current in accordance with the input voltage to a light-emitting device. A threshold voltage correcting period is provided to be part of the horizontal scanning period, to detect the threshold voltage of the drive transistor, and to write the threshold voltage in the pixel capacitor.

Disclosed are a pixel circuit and a driving method thereof, a display substrate and a driving method thereof, and a display apparatus. The pixel circuit includes a pixel sub-circuit, which includes: a driving circuit, including a control terminal, a first terminal and a second terminal; a voltage transmitting circuit, configured, in response to a transmission control signal, to apply a reset voltage and/or a first power voltage to the first terminal, respectively; and a data writing circuit, configured, in response to a scan signal, to write a data signal into the control terminal and store the data signal. The driving circuit is configured to control a voltage of the second terminal according to the data signal of the control terminal and the voltage of the first terminal, and to generate a driving current for driving a light-emitting element to emit light based on the voltage of the second terminal.

An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.

A display panel is provided in embodiments of the disclosure. The display panel includes multiple pixel units arranged in an array. During continuous display of two frames of images, each of the multiple pixel units is configured to receive a data signal of a first polarity to perform image display when a first frame of image in the two frames of images is displayed, and to receive a data signal of a second polarity to perform image display when a second frame of image in the two frames of images is displayed. Each of the multiple pixel units includes a first drive module, a second drive module, and a light-emitting module. The first drive module is configured to receive the data signal of the first polarity and to control the light-emitting module to emit light according to the data signal of the first polarity.

According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.

A display device includes: a plurality of scan lines; and a plurality of sub-pixels, each of the sub-pixels comprising a driving transistor, a plurality of transistors connected to the plurality of scan lines, and a light-emitting element electrically connected to the driving transistor. Each of the sub-pixels comprises an active layer comprising a channel region, a first electrode, and a second electrode of each of the plurality of transistors. A first scan line among the plurality of scan lines comprises a first extension extended in a first direction and a first protrusion extended in a second direction intersecting the first direction. The active layer overlaps with the first protrusion in a plan view.

A display device includes a display panel including a pixel and a panel driver which drives the display panel at a first panel frequency in a first driving mode and drives the display panel at a second panel frequency in a second driving mode. The pixel includes a light emitting element and first, second, third, and fourth transistors. The first transistor is connected between a power line and the light emitting element. The second transistor is connected between a data line and the first transistor and receives a first scan signal. The third transistor is connected between the first transistor and an initialization voltage line and receives a second scan signal. The fourth transistor is connected between the first transistor and a reset voltage line and receives a third scan signal. The third scan signal is inactivated in the first driving mode and is activated in the second driving mode.

An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.